TSN's James Duthie reported that Sharp has a separated shoulder, posting on his official Twitter account that Sharp has "a fairly severe AC joint shoulder separation."
In 24 games this season, Sharp has five goals and 18 points.
The Blackhawks meet the Avalanche again Friday at Pepsi Center (9 p.m. ET, NHLN-US), trying to extend their point streak to 25 games to start this season, and 31 stretching to the end of the 2011-12 regular season.
I downplayed the first one because I thought it's just a hockey game. We just want to win the game; it's against our rival and we want the two points. I downplayed it, but now having gone through the first one I look back and say, 'Geez, that was really cool.' I think as I've grown a bit older I've got a lot more appreciation for what we're allowed to do every day.
— Capitals forward Brooks Laich on the 2015 NHL Bridgestone Winter Classic, the second one of his career after 2011 in Pittsburgh